Type-writer carriage construction



, Nb. 748,681. J PArENTEDv-JAN. 5, 1904.

Y J-.-M.BXA1\I1)BRt TYPE WRITER vGARRIAGE CONSTRUCTION.

APPLIGATIONVAIILED Nov. a, 1902.

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PATENTED JAN. 5, 1904.

No. 748,681.l

' J. ALEXANDER.

vTREE WRITER CARRIAGE GONSTRUGTION.

APPLIOATION FILED NOV. 1902.

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UNITED STATES :Patented January 5, 1904.

PATENT OEEICE.

y JESSE A'IJEXANDER, NEWr YORK, N. Y., ASSIGNOR OF ONE-HALF TO FREDERICK WARD, OF BROOKLYN, NEW YORK.

TYPE-WRITER CARRIAGE CONSTRUCTION.

SPECIFIGATION'forming part of Letters Patent No. 748,681, dated January 5, 1904.

Application filed November 8, 1902. Serial No. 130,543. (No model.)

To if/ZZ whom it may concern,.-

Be it known that I, J Esse ALEXANDER, a citizen of the United States, residing at New York city, in the borough of Brooklyn, county of Kings, State of New York, have invented the frame of the machine.v The parts are also constructed and disposed so that the immediate supporting-frames of the platen may be removed independently of the carriage-guide support or attached thereto at will by a simple operation.

f The construction is simple and durable and at ,the same time accessible to the operator and of great efdciency, since it; is not likely to become accidentally disarran ged. The improvements will be found to consist in a structure embodying the functions of the mechanism herein described, and shown in the accompanying drawings.

Figure 1 is a plan view of a structure embodying my invention. Fig. 2'is a right-hand end elevation of the same. Fig. 3 is a fragmentary detail plan View of the main supporting structure with the parts shown unlocked and moved somewhat from their normal po,- lsition.. Fig. et is a fragmentary detail elevation of a platen-carrying side plate. Fig. 5 is a detail of the same, showing it about to be attached to the carriagebody. Fig. 6 is a Vsimilar view of the same, but in a locked position. Fig. 7 is a section and rear elevation of the right-hand endof the carriage-supporting bed.

In Fig. l I have designated the platen or roller about which the paper passes and Which serves as a backing for the paper which the type are operating to print upon by the numeral l. The platen-shaft 10 is rotatably tion'and supported by the brackets 6, which in their turn are carried by the slides 6l. The slides 6l rest upon and are secured to, when desired, the supporting-bed 7. This bed 7 is mounted upon the frame 8 of a machine in any suitable manner and extends across the machine at the rear thereof. 'At the front of the carriage the plates 2 are connected Logether by a rod 22, which carries a guideroller 23 in any suitable manner adapted to run freely upon the guide-rail 9.

The details of the construction are more particularly seen in Figs. 3 to 7, inclusive. Referring to Fig. 3,the slides 6,1 will be seen to extend from the end bracket 6 toward the central portion of the machine and to be slotted at 62 and at 63. Both of these slots are provided with a means for guiding the slide and,when desired,of holding itin engagement with the supporting-bed 7. l Th rough the slot 63 is passed a screw 64, which serves to hold the slide in place. At 65 I have shown a pin flattened on the sides, so that the slide may be moved freely from end to end of the slot 62 when the parts are in the position shown in Fig. 3. When the slide is in such a position that the pin 65 may be rotated through a part of a revolution, the slide will be locked in position. As shown herein, the slot 62 is provided with circular enlarged portions 620, 621, and 622, at any one of which the pin 65 may be partially turned to lock the slide in position corresponding. y For the purpose of providing a convenient operating means for pin 65 and also a head to engage the slide I have formed an arm 66 as a part of the pin 65 and by which the pin may be readily turned to lock or unlock the same When the slide is in the corresponding position. The brackets 6 are formed with recesses in the inner surface, as shown particularly in Fig. 7, which are adapted to readily receive the ends of the guide-rod 5. I prefer'that the supporting-plate 7 should be provided near IOC the end with the extensions 71 in order to provide a reinforcing-support for the brackets 6. When it is desired to remove the platen, carriage-body, and main guide-rod, it is merely necessary to unlock the pin and move the slide 61 (one or both) outwardly, when the guide-rod 5 will be freed from the brackets 6. In this manner the machine may be adjusted to suit any Width of carriage and guiderod for the one removed and placing the new carriage in position with sides extended or made shorter to correspond. The slide may then be locked to hold the parts securely.

In Figs. 4, 5, and 6 I have shown a detail of the side plates 2 and means for pivotally and removably attaching them to the end of the frames 3. The ends of the side plates 2 are slotted and provided with an enlarged circular portion 2O to engage with the pin 2l, which is attened on the sides, so that the frames 2 may be readily locked or removed when desired. This pin 21 is rotatably mounted in the frame 3. For convenience in turning the pin 21 I have provided an arm 23. When the parts are in the position shown in Fig. 5, the side plates 2 maybe readily slipped down over the pin 21 until the pin comes into the enlarged portion 2O of the slot. In this position the pin 21 may be rotated to the position shown in Fig. 6, at which time the side plates are locked securely in position. When it is desired to remove the platen for purposes of cleaning or adjusting the same, it is merely necessary to unlock the pins 21 and lift the side plates from their pivots.

The removal of the entire carriage structure may be effected by simply unlocking one pin 65 and moving the slide 61 outward, when the guide-rod 5 is freed.

The desirability of these features of adjustment and arrangement of the parts of the carriage will be apparent to one skilled in the art of type-writer construction as Well as to those who are accustomed to operate machines of this general character.

What I claim is- 1. In a type-Writer, a main supporting-bed, side brackets adapted to engage a guide-rod, slides extending from and supporting said brackets, one of said slides being slotted and having an enlargement in said slot, a pin pivoted in said supporting-bed and extending through said slide, said pin having a flattened portion and a handleon said pin for operating the same and adapted to hold said slide in position.

2. In a type-writer, a main supporting-bed, side brackets having recesses in the inner surfaces adapted to engage a guide-rod, slides extending from and supporting said brackets, one of said slides being slotted and haying an enlargement in saidslot, a pin pivoted in said supporting-bed and extending through said slide, said pinhaving a iattened portion and a handle on said pin for operating the same and adapted to hold said slide in position.

3. In a type-writer, a carriage construction comprising a supporting-bed, a side bracket adapted to engage a guide-rod, an extensionslide carried by said bracket and resting and Aadapted to slide upon said supporting-bed,

said slide having a plurality of slotted open- -ings therein, one of said openings being provided with an enlargement, a pin pivotally mounted -in said supporting-plate and adapted to lock said slide and brackets in position or to allow the same to slide horizontally.

4:. In a type-writer, a carriage construction comprising a supporting-bed, a side bracket having a recess on the inner surface adapted to engage a guide-rod, an extension-slide carried by said bracket and resting and adapted to slide upon said supporting-bed, said slide having a plurality of slotted openings therein, one of said openings being provided with an enlargement, a pin pivotally mounted in said supportingplate and adapted to lock said slide and brackets in position or to allow the same to slide horizontally.

5. In a type-writer machine, a supportingbed for a carriage structure, a pair of brackets adapted to support a guide-rod, extensionslides for said brackets adapted to rest upon and be moved along said supporting-bed, each of said plates being slotted and with enlargements, pins mounted on said supporting-bed and having flattened sides adapted to lock the said slides and brackets either in an extended or retracted position.

6. A type-writer carriage construction comprising a supporting-bed, brackets adapted t0 engage a guide-rod, extension-slides from said brackets adapted to rest and slide upon said supporting-bed, said slides having openings therein, one end of two of said openings being enlarged and enlargements also at other portions of said openings and pins having flattened portions and mounted in said supporting -bed and adapted to lock said brackets and slides in positions corresponding to the enlarged portions of said openings.

7. In a type-writer carriage construction, a main supporting-bed, side brackets, extension-slides therefrom supported by said bed, means for adjusting the position thereof, said brackets having recesses in their inner surface adapted to receive and support the ends of a guide-rod.

8. In a type-Writer, a carriage construction comprising a platen; platen-carrying plates, side frames, pins mounted in said frames for connecting the side plates with the side frames, the said plates being slotted to provide with said pins a means for locking said plates in position or freeing the same independently of the position of the platen.

9. In a type-writer, a carriage construction comprising side frames, means for supporting the same, side plates carrying a platen, pins pivoted in said side frames and having attened portions adapted to engage with a slotted portion of said plates, the slotted portions of said plates having enlargements adapted IIO to coach with said pins, substantially as described.

l0. In a type-writer, a carriage construction comprising side frames, side plates carrying a platen, pins pivotally carried by said side frames'and having flattened portions, handle-arms extending from said pins, the said plates being slotted and adapted to coact; with the atbened portion of saidpins, for the purpose specified.

11. In a isype-writer, a carriage construcbien comprising a supporting-bed, a pair of brackets, extension-slides carried by said brackets, said slides being slotted, pins car- 

